All sciences are interested in the understanding of the universe and humanity’s place in it; however, natural science is usually focused on helping students understand, through observation and experimentation, how energy and matter combine to affect the physical world.

Australia is an island country and continent of the southern hemisphere, in the SW Pacific, a member state of the Commonwealth.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.